I'm looking for an open-source automatic meshing tool or library able to generate full or dominant hexahedral mesh starting from a provided arbitrary model i.e. a surface triangular mesh stored in STL file.
What I have found is snappyHexMesh embedded in OpenFOAM. Are there some other tools that fit my purpose?
Someone already asked a quite similar question here but it's a quite old answer. Has something new been released in the meanwhile?